India 1911-23 GV 3p slate, strip/4, variety: “Rs” flaw in second stamp, along with GV ½a strip/4, on 1924 (Aug 18) registered cover (bottom trimmed) addressed to Stephen Smith. Another mint pair and single with the same flaw . SG 154a

Catalogue No: SG 154a; Scott 80var
Catalogue Value: £180
Type: Cover